That was quite a lot of information to take in. In the span of around forty pages we have managed to summarize the better part of the entire code base that would make any basic to intermediate complexity game tick. Keep in mind that although many topics got covered here, all of the information was rather condensed. Feel free to look through the code files we provide until you feel comfortable to proceed to actually building a game, which is precisely what's coming in the next chapter. See you there!